mtd: nand: Move Samsung specific init/detection logic in nand_samsung.c

Upstream linux commit c51d0ac59f2420.

Move Samsung specific initialization and detection logic into
nand_samsung.c. This is part of the "separate vendor specific code from
core" cleanup process.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 8fb2a43..d0312e9 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1158,6 +1158,8 @@
 extern struct nand_flash_dev nand_flash_ids[];
 extern struct nand_manufacturers nand_manuf_ids[];
 
+extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
+
 int nand_default_bbt(struct mtd_info *mtd);
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
 int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs);